Yes it was working fine. I bought it yesterday actually, and never charged it since, and using it like every 5 min hehe. I hope this fixes it, I am charging now, look back on the thread in a few min and I will post if it worked.
Yes, there is a switch on the side of that. In the directions it says "Switch down: LED shows the Battery Status. 0% - 100% = 6.6v - 8.4v" It is displaying a 5.16. Does that mean I dont have enough of a charge?
Sorry. It is a Lotus battery, and the tank is an Arctic. When I put the tank on the battery, the lights for the voltage will flash really quick, then nothing happens.